Mesoporous colloidal silica cubes with catalytically active cores

Alessio J. Sprockel; Frans Dekker; Remco Tuinier; Albert P. Philipse

doi:10.1007/s10934-023-01471-x

Mesoporous colloidal silica cubes with catalytically active cores

Alessio J. Sprockel (Corresponding author)
, Frans Dekker
, Remco Tuinier
, Albert P. Philipse

Physical Chemistry

Research output: Contribution to journal › Article › Academic › peer-review

1 Citation (Scopus)

46 Downloads (Pure)

Abstract

Preparation methods of cubic core-shell particles with specific functionality are limited. Here we demonstrate the possibility to transform cuprous oxide cubes coated with mesoporous silica into functional core-shell particles, while retaining their cubic shape. Cuprous oxide nanocubes are coated with mesoporous silica using cetyltrimethylammonium bromide as a template, after which the cuprous oxide core is transformed using liquid phase calcination and galvanic replacement. Nitrogen physisorption and electron microscopy confirm that mesoporous silica coatings are obtained with tuneable thickness. The successful transformation of cuprous oxide into gold and silver is assessed via UV–VIS spectroscopy and energy dispersive X-ray spectroscopy. Particles with a silver core and a cubic mesoporous silica shell are demonstrated to be catalytically active in the degradation of the dye Congo red. Graphical abstract: [Figure not available: see fulltext.]

Original language	English
Pages (from-to)	1965-1974
Number of pages	10
Journal	Journal of Porous Materials
Volume	30
Issue number	6
DOIs	https://doi.org/10.1007/s10934-023-01471-x
Publication status	Published - Dec 2023

Bibliographical note

Funding Information:
Remco Dalebout is thanked for the measurement of, and useful discussions on, the adsorption isotherms. Hans Meeldijk is thanked for the HAADF and EDX images. This project was funded by TTW (Toegepaste en Technische Wetenschappen) under project number 14210. Dr. Leon Bremer (DSM, now Nanoscolo), Dr. Damien Reardon (DSM, now Covestro), Dr. Filip Oosterlinck (DSM) and Dr. Jurgen Scheerder (DSM, now Covestro) from the Colloidal Mosaics project User Committee are thanked for helpful discussions. NWO-TTW (Nederlandse Organisatie voor Wetenschappelijk Onderzoek - Toegepaste en Technische Wetenschappen) is acknowledged for financial support.

Funding

Remco Dalebout is thanked for the measurement of, and useful discussions on, the adsorption isotherms. Hans Meeldijk is thanked for the HAADF and EDX images. This project was funded by TTW (Toegepaste en Technische Wetenschappen) under project number 14210. Dr. Leon Bremer (DSM, now Nanoscolo), Dr. Damien Reardon (DSM, now Covestro), Dr. Filip Oosterlinck (DSM) and Dr. Jurgen Scheerder (DSM, now Covestro) from the Colloidal Mosaics project User Committee are thanked for helpful discussions. NWO-TTW (Nederlandse Organisatie voor Wetenschappelijk Onderzoek - Toegepaste en Technische Wetenschappen) is acknowledged for financial support. Remco Dalebout is thanked for the measurement of, and useful discussions on, the adsorption isotherms. Hans Meeldijk is thanked for the HAADF and EDX images. This project was funded by TTW (Toegepaste en Technische Wetenschappen) under project number 14210. Dr. Leon Bremer (DSM, now Nanoscolo), Dr. Damien Reardon (DSM, now Covestro), Dr. Filip Oosterlinck (DSM) and Dr. Jurgen Scheerder (DSM, now Covestro) from the Colloidal Mosaics project User Committee are thanked for helpful discussions. NWO-TTW (Nederlandse Organisatie voor Wetenschappelijk Onderzoek - Toegepaste en Technische Wetenschappen) is acknowledged for financial support.

Keywords

Catalytic dye degradation
Core-shell
Cubic nanoparticles
Cuprous oxide
Silica

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title = "Mesoporous colloidal silica cubes with catalytically active cores",

abstract = "Preparation methods of cubic core-shell particles with specific functionality are limited. Here we demonstrate the possibility to transform cuprous oxide cubes coated with mesoporous silica into functional core-shell particles, while retaining their cubic shape. Cuprous oxide nanocubes are coated with mesoporous silica using cetyltrimethylammonium bromide as a template, after which the cuprous oxide core is transformed using liquid phase calcination and galvanic replacement. Nitrogen physisorption and electron microscopy confirm that mesoporous silica coatings are obtained with tuneable thickness. The successful transformation of cuprous oxide into gold and silver is assessed via UV–VIS spectroscopy and energy dispersive X-ray spectroscopy. Particles with a silver core and a cubic mesoporous silica shell are demonstrated to be catalytically active in the degradation of the dye Congo red. Graphical abstract: [Figure not available: see fulltext.]",

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note = "Funding Information: Remco Dalebout is thanked for the measurement of, and useful discussions on, the adsorption isotherms. Hans Meeldijk is thanked for the HAADF and EDX images. This project was funded by TTW (Toegepaste en Technische Wetenschappen) under project number 14210. Dr. Leon Bremer (DSM, now Nanoscolo), Dr. Damien Reardon (DSM, now Covestro), Dr. Filip Oosterlinck (DSM) and Dr. Jurgen Scheerder (DSM, now Covestro) from the Colloidal Mosaics project User Committee are thanked for helpful discussions. NWO-TTW (Nederlandse Organisatie voor Wetenschappelijk Onderzoek - Toegepaste en Technische Wetenschappen) is acknowledged for financial support. ",

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N1 - Funding Information: Remco Dalebout is thanked for the measurement of, and useful discussions on, the adsorption isotherms. Hans Meeldijk is thanked for the HAADF and EDX images. This project was funded by TTW (Toegepaste en Technische Wetenschappen) under project number 14210. Dr. Leon Bremer (DSM, now Nanoscolo), Dr. Damien Reardon (DSM, now Covestro), Dr. Filip Oosterlinck (DSM) and Dr. Jurgen Scheerder (DSM, now Covestro) from the Colloidal Mosaics project User Committee are thanked for helpful discussions. NWO-TTW (Nederlandse Organisatie voor Wetenschappelijk Onderzoek - Toegepaste en Technische Wetenschappen) is acknowledged for financial support.

PY - 2023/12

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N2 - Preparation methods of cubic core-shell particles with specific functionality are limited. Here we demonstrate the possibility to transform cuprous oxide cubes coated with mesoporous silica into functional core-shell particles, while retaining their cubic shape. Cuprous oxide nanocubes are coated with mesoporous silica using cetyltrimethylammonium bromide as a template, after which the cuprous oxide core is transformed using liquid phase calcination and galvanic replacement. Nitrogen physisorption and electron microscopy confirm that mesoporous silica coatings are obtained with tuneable thickness. The successful transformation of cuprous oxide into gold and silver is assessed via UV–VIS spectroscopy and energy dispersive X-ray spectroscopy. Particles with a silver core and a cubic mesoporous silica shell are demonstrated to be catalytically active in the degradation of the dye Congo red. Graphical abstract: [Figure not available: see fulltext.]

AB - Preparation methods of cubic core-shell particles with specific functionality are limited. Here we demonstrate the possibility to transform cuprous oxide cubes coated with mesoporous silica into functional core-shell particles, while retaining their cubic shape. Cuprous oxide nanocubes are coated with mesoporous silica using cetyltrimethylammonium bromide as a template, after which the cuprous oxide core is transformed using liquid phase calcination and galvanic replacement. Nitrogen physisorption and electron microscopy confirm that mesoporous silica coatings are obtained with tuneable thickness. The successful transformation of cuprous oxide into gold and silver is assessed via UV–VIS spectroscopy and energy dispersive X-ray spectroscopy. Particles with a silver core and a cubic mesoporous silica shell are demonstrated to be catalytically active in the degradation of the dye Congo red. Graphical abstract: [Figure not available: see fulltext.]

KW - Catalytic dye degradation

KW - Core-shell

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KW - Silica

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ER -

Mesoporous colloidal silica cubes with catalytically active cores

Abstract

Bibliographical note

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Keywords

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